CVE-2022-27882

HIGH

OpenBSD 6.9-7.0 - Heap-Based Buffer Overflow in slaacd via IPv6 Router Advertisement

Title source: llm
STIX 2.1

Description

slaacd in OpenBSD 6.9 and 7.0 before 2022-03-22 has an integer signedness error and resultant heap-based buffer overflow triggerable by a crafted IPv6 router advertisement. NOTE: privilege separation and pledge can prevent exploitation.

References (4)

Core 4
Core References
Patch, Release Notes, Vendor Advisory x_refsource_misc
https://ftp.openbsd.org/pub/OpenBSD/patches/7.0/common/017_slaacd.patch.sig
Patch, Release Notes, Vendor Advisory x_refsource_misc
https://ftp.openbsd.org/pub/OpenBSD/patches/6.9/common/033_slaacd.patch.sig
Third Party Advisory x_refsource_confirm
https://security.netapp.com/advisory/ntap-20220506-0005/

Scores

CVSS v3 7.5
EPSS 0.0188
EPSS Percentile 76.6%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Details

CWE
CWE-681
Status published
Products (2)
openbsd/openbsd 6.9
openbsd/openbsd 7.0
Published Mar 25, 2022
Tracked Since Feb 18, 2026